The Deinococci, Mollicutes, and Nonproteobacterial Gram-Negative Bacteria
|
|
- Cornelius Cobb
- 6 years ago
- Views:
Transcription
1 21 The Deinococci, Mollicutes, and Nonproteobacterial Gram-Negative Bacteria Copyright McGraw-Hill Global Education Holdings, LLC. Permission required for reproduction or display. 1
2 Deinococcus Extraordinarily resistant to desiccation and radiation can survive 3 5 million rad (100 rad lethal to humans) Isolated from ground meat, feces, air, fresh water, and other sources, but natural habitat unknown 2
3 Deinococcus Genome consists of two circular chromosomes, a megaplasmid, and a small plasmid radiation resistance due to ability to repair genome when it is severely damaged efficient proteins (protected by manganese) and enzymes for DNA repair Within hours can repair chromosomes fragmented by exposure to radiation 3
4 The Mycoplasmas Lack cell walls and are pleomorphic cannot synthesize peptidoglycan precursors sterols may stabilize plasma membrane smallest bacteria capable of self-reproduction grow as fried egg appearance on agar surface 4
5 More about The Mycoplasmas Genomes less than 1000 genes one of the smallest found in prokaryotes 5
6 Important Pathogens Mycoplasma mycoides pleuropneumonia in cattle Mycoplasma gallisepticum chronic respiratory disease in chickens Mycoplasma hyopneumoniae swine pneumonia Mycoplasma pneumoniae primary atypical pneumonia in humans Ureaplasma urealyticum premature birth, neonatal meningitis and pneumonia spiroplasmas pathogenic in insects, ticks, and a variety of plants 6
7 The Photosynthetic Bacteria: 5 Groups Cyanobacteria oxygenic photosynthetic bacteria Anoxygenic phototrophic bacteria:(these range from photolithoautotrophs to photoorganoheterotrophs) Purple bacteria Purple non-sulfur bacteria Green non-sulfur bacteria Green sulfur bacteria 7
8 8
9 Photosynthetic Bacteria The cyanobacteria carry out oxygenic photosynthesis use water as an electron donor and generate oxygen during photosynthesis The purple and green bacteria carry out anoxygenic photosynthesis and use a variety of organic and inorganic nutrients for electron donors (lithotrophs or organotrophs) and carbon (autotrophs or heterotrophs) 9
10 Photosynthetic Microbes Differences in photosynthetic pigments, with distinct absorption spectra, and oxygen requirements are important ecologically inhabit different layers of water environments 10
11 The Cyanobacteria Largest, most diverse group of photosynthetic bacteria Chlorophyceae blue green algae common term Many are obligate photolithoautotrophs; some can grow slowly in dark as chemoheterotrophs Important in nitrogen cycle (provide fertilizer for cultivation of rice and bean crops) Fossil records date back 3.8 million years Responsible for the Earth s atmosphere Endosymbiosis leading to eukaryotic plants Have chlorophyll a 11
12 More about Cyanobacteria Some storage structures have carboxysomes (enzymes for Calvin cycle) cyanophycin Range in diameter from ~1 to 10 µm May be unicellular, colonial, or filaments 12
13 More about Cyanobacteria Pigmentation most appear blue-green due to presence of phycocyanin presence of phycoerythrin in many ocean isolates gives them red or brown coloration chromatic adaption modulation of pigment concentrations in different light Phototaxis by use of gas vacuoles 13
14 Specialized Reproductive Cells and Structures Binary fission, budding, fragmentation, multiple fission Hormogonia small, motile fragments of filamentous cyanobacteria Akinetes dormant, thick-walled resting cells resistant to desiccation often germinate to form new filaments Baeocytes produced by multiple fission small spherical cells; escape when outer wall ruptures some are motile by gliding motility 14
15 Heterocysts Specialized cells used for nitrogen fixation produced when organism is nitrogen deprived differentiate from individual cells in filament thick heterocyst wall prevents O 2 diffusion into heterocyst which would inactivate nitrogenase 15
16 Ecology of Cyanobacteria - 1 Tolerant of environmental extremes thermophilic species can grow at temperatures up to 75 C often are primary colonizers Can cause blooms in nutrient-rich ponds and lakes some produce toxins 16
17 Ecology of Cyanobacteria - 2 Often form symbiotic relationships e.g., are phototrophic partner in most lichens e.g., symbionts with protozoa and fungi e.g., nitrogen-fixing species form plant associations Profound effect on global carbon cycle Synechococcus, Prochlorococcus two marine genera; ~1/3 of global CO 2 fixation less than 1% of ocean mass 17
18 The Chlamydia Obligate intracellular parasites must grow and reproduce inside host cells although known for ability to cause disease, many grow within hosts such as protists, and animal cells without adverse effects One class, one order, four families, six genera genus Chlamydia is best studied 18
19 Genus Chlamydia Nonmotile, coccoid, Gram-negative cell walls lack muramic acid in peptidoglycan have very small genomes Obligate intracellular parasites with unique developmental cycle elementary body (EB) attaches to host cell reticulate body (RB) reproduction by binary fission differentiate back into EB, lyses cell 19
20 20
21 Chlamydial Metabolism Cannot catabolize carbohydrates Cannot synthesize ATP or NAD + import up from host do have genes for substrate-level phosphorylation, electron transport, and oxidative phosphorylation RBs have biosynthetic capabilities when supplied precursors from host; can synthesize some amino acids EBs seem to be dormant forms 21
22 Chlamydial diseases Chlamydia is the most frequently reported sexually transmitted bacterial disease 1.3 million cases in US in 2010 number underestimated due to asymptomatic cases Chlamydia trachomatis is the most commonly isolated species transmitted through anal, oral, and vaginal sex; can also be transmitted from mother to child during delivery 22
23 Chlamydial diseases Clinical manifestations in males asymptomatic or urethral discharge, and itching and inflammation of genital tract in females sometimes asymptomatic may cause PID if pregnant, can lead to miscarriage, stillbirth, inclusion conjunctivitis, and infant pneumonia 23
24 Trachoma Caused by C. trachomatis serotypes A-C Transmitted by hand-to-hand contact, contact with infected soaps and towels, and flies, also mother child contact in adults The greatest single cause of blindness throughout the world 24
25 Clinical manifestations first infection Trachoma abrupt onset of inflamed conjunctiva, leading to inflammatory cell exudate and necrotic eyelash follicles usually heals spontaneously reinfection pannus formation (vascularization of cornea), leading to scarring of conjunctiva if scarring of cornea also occurs, blindness results 25
26 Psittacosis (Ornithosis) Caused by Chlamydophilia psittaci (previously Chlamydia psittaci) enters respiratory tract, transported to and reproduces in liver and spleen, and then invades lungs Infectious disease of birds transmitted to humans by direct contact with infected birds or by inhalation of dried bird excreta occupational hazard in poultry industry 26
27 Psittacosis Clinical manifestations inflammation and hemorrhaging of lung tissue and pneumonia Diagnosis isolation from blood or sputum, or by serology Treatment, prevention, and control antibiotic therapy chemoprophylaxis for pet birds and poultry 27
28 Chlamydial Pneumonia Caused by Chlamydia pneumoniae obligate intracellular parasite may also play role in coronary artery disease and vascular disease at other sites Transmission probably human to human by respiratory secretions elementary bodies infect, reticular bodies replicate 28
29 Chlamydial Pneumonia Clinical manifestations fever, productive cough, and mild pharyngitis, bronchitis, and sinusitis Diagnosis, treatment, prevention observation of symptoms and a microimmunofluorescence test antibiotic therapy 29
30 Contains one class; one order, three families, 13 genera Gram-negative, chemoheterotrophic bacteria with distinctive structure and motility The Spirochaetes slender, long with flexible helical shape creeping (crawling) motility due to a structure called an axial filament Oxygen requirements vary 30
31 Symbiotic Associations between Spirochetes and Other Organisms Ecologically diverse free living symbiotic hindguts of termites digestive tracts of mollusks and mammals oral cavities of animals disease Lyme disease, syphilis and leptospirosis are spirochete diseases 31
32 32
33 Syphilis Caused by Treponema pallidum subsp. pallidum Venereal syphilis sexually transmitted Congenital syphilis acquired in utero 33
34 Diagnosis Syphilis clinical history, microscopic examination, and serology Treatment, prevention, and control antibiotic therapy most effective in early stages public education, prompt treatment of new cases, follow-up on sources and contacts, sexual hygiene, and use of condoms 34
35 LD or Lyme borreliosis Lyme Disease Most common tick-borne disease in the U.S. Caused by Borrelia burgdorferi (most common in U.S.), B. garinii, and B. afzelii (most common in Europe and Asia) 35
36 Lyme Disease Transmitted from animal reservoirs by ticks (Ixodes scapularis and I. pacificus) deer, field mice, and woodrats Complex disease clinical manifestations vary with three stages of disease initial, disseminated, late stage 36
37 Localized stage Stages of Lyme Disease develops 1 week to 10 days after infection expanding, ring-shaped, skin lesion flu-like symptoms Disseminated stage occurs weeks or months after infection neurological abnormalities, heart inflammation, and arthritis Lyme arthritis may be autoimmune to joint MHC which are similar to bacterial antigens 37
38 Late stage Stages of Lyme Disease occurs years later demyelination of neurons, behavioral changes, and symptoms resembling Alzheimer s disease and multiple sclerosis 38
39 Lyme Disease Diagnosis serogical testing (Lyme ELISA or Western blot) isolation of spirochete from patient detection of Borrelia DNA (PCR) Treatment, prevention, and control antibiotic therapy most effective in early stages tick control and avoiding ticks 39
40 Bacteroides Anaerobic, Gram-negative rods, various shapes Often found in oral cavity and intestinal tract of humans and other animals and the rumen of ruminants often benefit host by degrading complex carbohydrates, providing extra nutrition to host constitute up to 30% of bacteria from human feces some cause disease Most common nosocomial anaerobic infection with a 20% fatality rate 40
41 Gliding Motility - 1 Characteristic of the Bacteriodetes Also present in many other taxa fruiting and nonfruiting aerobic chemoheterotrophs cyanobacteria green nonsulfur bacteria at least two Gram-positive genera 41
42 Gliding Motility - 2 Gliding mechanism unknown occurs when cells in contact with solid surface cells leave slime trail; motility often lost with age low-nutrient levels usually stimulate gliding 42
43 Advantages of Gliding Motility Enables cells to encounter insoluble nutrient sources and digest them with cell bound digestive enzymes Works well in drier habitats (e.g., soil, sediments, and rotting wood) Enables cells to position themselves optimally for light intensity, [O 2 ], [H 2 S], temperature, etc. 43
LECTURE 13. THE BACTERIA (cont.) Photosynthetic Bacteria, phylogenetically widespread. And many Proteobacteria. Photosynthetic Bacteria
Photosynthetic Bacteria, phylogenetically widespread LECTURE 13 THE BACTERIA (cont.) And many Proteobacteria Photosynthetic Bacteria > Green Sulfur > Green Nonsulfur > Purple Sulfur > Purple Nonsulfur
More informationThe Prokaryotic World
The Prokaryotic World A. An overview of prokaryotic life There is no doubt that prokaryotes are everywhere. By everywhere, I mean living in every geographic region, in extremes of environmental conditions,
More information9/8/2017. Bacteria and Archaea. Three domain system: The present tree of life. Structural and functional adaptations contribute to prokaryotic success
5 m 2 m 9/8/2017 Three domain system: The present tree of life Bacteria and Archaea Chapter 27 Structural and functional adaptations contribute to prokaryotic success Unicellular Small Variety of shapes
More informationCharacteristics. Nucleoid Region single circular chromosome plasmids mesosome
Prokaryotes Characteristics Nucleoid Region single circular chromosome plasmids mesosome No membranebound organelles Ribosomes (70S) Plasma membrane Cell wall peptidoglycan Capsule glycocalyx Flagella
More informationFigure Page 117 Microbiology: An Introduction, 10e (Tortora/ Funke/ Case)
Chapter 11 The Prokaryotes: Domains Bacteria and Archaea Objective Questions 1) Which of the following are found primarily in the intestines of humans? A) Gram-negative aerobic rods and cocci B) Aerobic,
More informationBacteria and Viruses. 1 Bacteria CHAPTER 18. MAINIDEA Bacteria are prokaryotic cells.
CHAPTER 18 Bacteria and Viruses 1 Bacteria 7(F), 8(B), 8(C), 11(C), 12(A) Before You Read When you hear the word bacteria, what comes to mind? On the lines below, describe places you think bacteria might
More informationBACTERIA AND ARCHAEA 10/15/2012
BACTERIA AND ARCHAEA Chapter 27 KEY CONCEPTS: Structural and functional adaptations contribute to prokaryotic success Rapid reproduction, mutation, and genetic recombination promote genetic diversity in
More informationSection Title: Archaebacteria vs. Eubacteria
Unit: 3.1 Name: Section Title: Archaebacteria vs. Eubacteria Latin Root Word: Review of Old Information: None New Information: Bacteria Notes Basic Bacteria Facts Classification of Bacteria: Kingdom Archaebacteria
More informationClassification. Old 5 Kingdom system. New 3 Domain system. reflects a greater understanding of evolution & molecular evidence
Classification Old 5 Kingdom system Monera, Protists, Plants, Fungi, Animals New 3 Domain system reflects a greater understanding of evolution & molecular evidence Prokaryote: Bacteria Prokaryote: Archaebacteria
More informationVocabulary- Bacteria (34 words)
Biology II BACTERIA Vocabulary- Bacteria (34 words) 1. Prokaryote 21. phototroph 2. Peptidoglycan 22. chemotroph 3. Methanogen 23. obligate anaerobe 4. Halophile 24. facultative anaerobe 5. Thermoacidophile
More informationB. Correct! Bacillus anthraces produces spores that can cause anthrax. D. Incorrect! Diphtheria is caused by Corynebacterium diphtheriae.
Microbiology - Problem Drill 09 - The Prokaryotes No. 1 of 10 1. Bacillus anthraces is most closely associated with which of the following? (A) Botulism poisoning (B) Anthrax (C) Gangrene (D) Diphtheria
More informationKINGDOM MONERA. Bacterial Cell Shape 8/22/2010. The Prokaryotes: Archaebacteria and Eubacteria
KINGDOM MONERA The Prokaryotes: Archaebacteria and Eubacteria Bacteria are the most organisms living on the Earth. (i.e. 10mL of soil contains 1 x 10 10 bacteria. They are found in nearly every habitat
More informationKingdom Monera(Archaebacteria & Eubacteria)
Kingdom Monera(Archaebacteria & All bacteria are prokaryotes Characteristics: 1. No nucleus Eubacteria) 2. No membrane bound organelles 3. Smaller & less ribosomes 4. Most are smaller than eukaryotes 5.
More informationOutline. Viruses, Bacteria, and Archaea. Viruses Structure Classification Reproduction Prokaryotes Structure Reproduction Nutrition Bacteria Archaea
Viruses, Bacteria, and Archaea Chapter 21 Viruses Structure Classification Reproduction Prokaryotes Structure Reproduction Nutrition Bacteria Archaea Outline The Viruses The Viruses Viruses are noncellular
More informationKingdom Bacteria Kingdom Archaea
Section 5.1 Kingdom Bacteria Kingdom Archaea p. 132-139 Kingdom Bacteria General Characteristics: Cell Type: all are prokaryotic. Body Form: most are unicellular, some are colonial. Three main shapes are:
More informationNotes - Microbiology Monera
Notes - Microbiology Monera Part 1 Classification - Kingdom moneran is more commonly known as bacteria. This is the largest kingdom with inhabitants covering almost every square metre of the planet! -
More informationAnnouncements KEY CONCEPTS
What do these things have in common? Announcements Lab this week: bring textbook and photo atlas. Relevant reading BEFORE lab: Ch. 30 http://i.cnn.net/cnn/specials/2001/trade.center/images/anthrax.jpg
More information(A) Exotoxin (B) Endotoxin (C) Cilia (D) Flagella (E) Capsule. A. Incorrect! Only gram-positive bacteria secrete exotoxin.
College Biology - Problem Drill 13: Prokaryots and Protists Question No. 1 of 10 1. Gram-negative bacteria can cause disease in humans by release of what substance? Question #01 (A) Exotoxin (B) Endotoxin
More informationProkaryotes Vs. Eukaryotes
The Microbial World Prokaryotes Vs. Eukaryotes Mircrobes of the Ocean Primary Producers Are the organisms that produce bio-mass from inorganic compounds (autotrophs). -Photosynthetic autotrophs Phytoplankton
More informationArchea and Bacteria- The PROKARYOTES
` Archea and Bacteria- The PROKARYOTES As late as 1977, all prokaryotes were put into one single kingdom called Monera. Taxonomists no longer accept that concept. Some prokaryotes are more closely related
More informationTRACING BACK TO THE BEGINNING
BACTERIA! TRACING BACK TO THE BEGINNING PROKARYOTES KINGDOM EUBACTERIA KINGDOM ARCHAEBACTERIA CHARACTERISTICS: 1. NO NUCLEUS 2. NO MEMBRANE BOUND ORGANELLES 4. MOST ARE SMALLER THAN EUKARYOTES 5. ARE SINGLE-CELLED
More informationLecture 2: Kingdoms Monera, Protoctista and Fungi
KINGDOM MONERA Bacteria Lecture 2: Kingdoms Monera, Protoctista and Fungi Kingdom Monera Commonly called bacteria All monerans are unicellular All monerans are prokaryotes Prokaryotes: Single-celled organisms
More information1. Prokaryotic Nutritional & Metabolic Adaptations
Chapter 27B: Bacteria and Archaea 1. Prokaryotic Nutritional & Metabolic Adaptations 2. Survey of Prokaryotic Groups A. Domain Bacteria Gram-negative groups B. Domain Bacteria Gram-positive groups C. Domain
More informationProkaryotes. Chapter 27. PowerPoint Lectures for Biology, Seventh Edition. Lectures by Chris Romero. Neil Campbell and Jane Reece
Chapter 27 Prokaryotes PowerPoint Lectures for Biology, Seventh Edition Neil Campbell and Jane Reece Lectures by Chris Romero Overview: They re (Almost) Everywhere! Most prokaryotes are microscopic But
More informationBacteria. The Three Types of Important Heterotrophic Bacteria
Bacteria Kingdom Monera Prokaryote (their genetic material is not bound with a membrane) Classified according to shape - Spherical (cocci) - Spiral - Rod Shaped -TWO TYPES: Heterotrophic (organism that
More informationArchaebacteria and Eubacteria
Archaebacteria and Eubacteria Bacteria are of immense importance because of their rapid growth, reproduction, and mutation rates, as well as, their ability to exist under adverse conditions. The oldest
More informationSG 9.2 notes Ideas about targets and terms: 9.2 In the past, all living things were classified in either the kingdom of animals or plants
Ideas about targets and terms: 9.2 In the past, all living things were classified in either the kingdom of animals or plants Euglena are singled celled organisms in pond water They are green, so contain,
More informationIntro to Prokaryotes Lecture 1 Spring 2014
Intro to Prokaryotes Lecture 1 Spring 2014 Meet the Prokaryotes 1 Meet the Prokaryotes 2 Meet the Prokaryotes 3 Why study prokaryotes? Deep Time 4 Fig. 25.7 Fossilized stromatolite (above) and living stromatolite
More informationThe Prokaryotes: Domains Bacteria and Archaea
PowerPoint Lecture Presentations prepared by Bradley W. Christian, McLennan Community College C H A P T E R 11 The Prokaryotes: Domains Bacteria and Archaea Table 11.1 Classification of Selected Prokaryotes*
More informationUnit 10: The simplest living beings
Unit 10: The simplest living beings 1. Fungi 2. Protoctists 2.1. Protozoa 2.2. Algae 3. Bacteria 4. Viruses Think and answer? a. What type of organism can you see in the photograph? b. What type of cells
More informationCharacterizing and Classifying Eukaryotes. Fungi. Chemoheterotrophic. Have cell walls typically composed of chitin. Do not perform photosynthesis
PowerPoint Lecture Presentations prepared by Mindy Miller-Kittrell, North Carolina State University C H A P T E R 12 Characterizing and Classifying Eukaryotes Chemoheterotrophic Have cell walls typically
More informationProkaryotes (Domains Bacteria & Archaea) KEY POINTS
Prokaryotes (Domains Bacteria & Archaea) KEY POINTS 1. Decomposers: recycle organic and inorganic molecules in environment; makes them available to other organisms. 2. Essential components of symbioses.
More informationMAJOR EPISODES IN THE HISTORY OF LIFE
MAJOR EPISODES IN THE HISTORY OF LIFE All the major phyla of animals evolved by the end of the Cambrian explosion, which began about 540 million years ago and lasted about 10 million years. Plants and
More information4/17/2014. Prokaryotes have inhabited the Earth for billions of years
Prokaryotes have inhabited the Earth for billions of years Fossil evidence shows that prokaryotes were abundant 3.5 bya, and they evolved alone for the following 2 billion years. Prokaryotes are ubiquitous,
More informationCharacterizing and Classifying Eukaryotes. Fungi. Chemoheterotrophic. Have cell walls typically composed of chitin. Do not perform photosynthesis
PowerPoint Lecture Presentations prepared by Mindy Miller-Kittrell, North Carolina State University C H A P T E R 12 Characterizing and Classifying Eukaryotes Chemoheterotrophic Have cell walls typically
More informationKingdom Monera Bacteria
Kingdom Monera Bacteria Common bacteria Prokaryotes Strep throat Anthrax Chlamydia E. coli Meningitis Salmonella Micrococcus(intestinal) Streptococcus mutans Haemophilusinfluenzae Cellphonious bacterious
More informationHow Cells Arose; Microbial Life
How Cells Arose; Microbial Life No one knows for sure Earliest life thought to be like today s bacteria The earth formed 4.5 bya The first life originated around 2.5 bya at least 3 possibilities for origin
More informationBiology EOCT Review. Milton High School
Biology EOCT Review Milton High School Cell Organelles Nucleus holds DNA Cell membrane what comes in and goes out Mitochondria powerhouse of the cell Ribosomes protein synthesis Lysosomes digestion Cell
More informationClassification by Aristotle and Theophrastus. Early Classification. Living Things
Classification by Aristotle and Theophrastus Early Classification Living Things Plants Animals Classification by Aristotle and Theophrastus Aristotle's Classification Animals Air Dwellers Land Dwellers
More informationBehavioral and Structural Adaptations PPT Guided Notes
A Essential Standard 2.1.2 Analyze how various organisms accomplish the following life functions through adaptations with particular environments and that these adaptations have evolved to ensure survival
More informationPrinciples of Cellular Biology
Principles of Cellular Biology آشنایی با مبانی اولیه سلول Biologists are interested in objects ranging in size from small molecules to the tallest trees: Cell Basic building blocks of life Understanding
More informationSymbiosis. Symbiosis is a close association between of two or more organisms. Endosymbiosis living within another
PROTISTS Protists constitute several kingdoms within the domain Eukarya Protists obtain their nutrition in a variety of ways Algae are autotrophic protists Protozoans are heterotrophic protists Fungus
More informationTop Ten Reasons that Biology 211 Students Think itʼs BORING to Learn About Organisms that You Canʼt Even SEE Without a Microscope
Announcements There are NO assignments for points in this class on Mastering Biology - this is intended as a study resource for you Powerpoint files are in the Learning Modules on WebCT Exam over Unit
More informationChapter 12. Eukaryotes. Characterizing and Classifying. 8/3/2014 MDufilho 1
Chapter 12 Characterizing and Classifying Eukaryotes 8/3/2014 MDufilho 1 General Characteristics of Eukaryotic Organisms Five major groups Protozoa Fungi Algae Water molds Slime molds Include both human
More informationBIOLOGY 1021 UNIT 1: MULTICELLULAR STRUCTURE CHAPTER 15 P AND CHAPTER 16 P
BIOLOGY 1021 UNIT 1: MULTICELLULAR STRUCTURE CHAPTER 15 P. 307-311 AND CHAPTER 16 P. 328-331 Be sure to know flow chart an understanding from atoms to multicellular organisms. Importance of carbon, hydrogen,
More information19-1 Notes Bacteria. Named after the Greek word Little stick because many bacteria have a stick-like shape when viewed under a microscope
19-1 Notes Bacteria Bacteria are found virtually everywhere! Named after the Greek word Little stick because many bacteria have a stick-like shape when viewed under a microscope We know that bacteria are
More informationno.1 Raya Ayman Anas Abu-Humaidan
no.1 Raya Ayman Anas Abu-Humaidan Introduction to microbiology Let's start! As you might have concluded, microbiology is the study of all organisms that are too small to be seen with the naked eye, Ex:
More informationA word of caution about a little knowing Lab organisms limit the view of the world of microbiology
Diversity The world of living things (Figure from Madigan et al. 2002) Microbes in all three domains Two of the domains are exclusively prokaryotic and microbial The third contains both unicellular and
More informationBacillus anthracis. Causes Anthrax Especially deadly when inhaled
Eubacteria Bacteria are the most abundant organisms on earth. An estimated 5 X 1030individuals. One bacterium can give rise to 10 million in 24 hours. Both aerobic (with oxygen) and anaerobic (without
More informationCurriculum for Plant Biology 17 Kingdom Monera and Viruses. Prerequisite Skills. Skills. Framework Standard(s) Biology
Plant Biology 17 Kingdom Monera and Viruses I. Introduction to Bacteria A. symbiotic relationships 1. mutualism between luminescent bacteria and flash-light fish B. Ancient organisms 1. known as fossils
More information4) The diagram below represents the organization of genetic information within a cell nucleus.
Name: 3987-1 - Page 1 1) Every single-celled organism is able to survive because it carries out A) sexual reproduction B) heterotrophic nutrition C) autotrophic nutrition D) metabolic activities 2) Which
More informationUnit 14.1: Introduction to Protists
Unit 14.1: Introduction to Protists This organism consists of a single cell with several flagella. Is it a prokaryote, such as a bacterium? Actually, it s larger than a prokaryotic cell, and it also has
More informationChapter 21 PROKARYOTES AND VIRUSES
Chapter 21 PROKARYOTES AND VIRUSES Bozeman Video classification of life http://www.youtube.com/watch?v=tyl_8gv 7RiE Impacts, Issues: West Nile Virus Takes Off Alexander the Great, 336 B.C., conquered a
More informationBacteria outline-- CHAPTER 19 Bacteria
Bacteria outline-- CHAPTER 19 Bacteria Structure and Function Prokaryote & Eukaryote Evolution Cellular Evolution Current evidence indicates that eukaryotes evolved from prokaryotes between 1 and 1.5 billion
More informationTER 26. Preview for 2/6/02 Dr. Kopeny. Bacteria and Archaea: The Prokaryotic Domains. Nitrogen cycle
Preview for 2/6/02 Dr. Kopeny Bacteria and Archaea: The Prokaryotic Domains TER 26 Nitrogen cycle Mycobacterium tuberculosis Color-enhanced images shows rod-shaped bacterium responsible for tuberculosis
More informationBacteria & Archaea. Ms.Tanyaratana Dumkua Biology Department, MahidolWittayanusorn school
Bacteria & Archaea Ms.Tanyaratana Dumkua Biology Department, MahidolWittayanusorn school What is the bacteria? http://www.unc.edu/depts/tcf/mycoplasma.gif http://gsbs.utmb.edu/microbook/images/fig37_1.jpg
More informationUnit 13.1: Prokaryotes
Unit 13.1: Prokaryotes Can you guess what organisms are pictured here? Are they fat green worms on a red leaf? Here s a clue: There are more organisms like these than any other on Earth. Here s another
More informationChapter 19 Notes Kingdoms Archaebacteria andeubacteria
Chapter 19 Notes Kingdoms Archaebacteria andeubacteria All bacteria are Prokaryotic. This means that they are organisms that are one-celled and do not contain a nucleus or other membrane bound organelles.
More informationProtists and Humans. Section 12-3
Protists and Humans Section 12-3 Protists and Disease Key Idea: Protists cause a number of human diseases, including giardiasis, amebiasis, toxoplasmosis, trichomoniasis, cryptosporidiosis, Chagas disease,
More informationMajor Events in the History of Earth
Major Events in the History of Earth Cenozoic Humans Land plants Animals Origin of solar system and Earth Multicellular eukaryotes 1 Proterozoic eon 2 Archaean eon 3 4 Single-celled eukaryotes Atmospheric
More informationClassifying Prokaryotes: Eubacteria Plasma Membrane. Ribosomes. Plasmid (DNA) Capsule. Cytoplasm. Outer Membrane DNA. Flagellum.
Bacteria The yellow band surrounding this hot spring is sulfur, a waste product of extremophilic prokaryotes, probably of the Domain Archaea, Kingdom Archaebacteria. Bacteria are prokaryotic cells (no
More informationThe invention of the microscope has opened to us a world of extraordinary numbers. A singular drop of pond water reveals countless life forms
Biology Chapter 19 Notes - Bacteria and Viruses The invention of the microscope has opened to us a world of extraordinary numbers. A singular drop of pond water reveals countless life forms I. Classifying
More information11/15/2011. Outline. Prokaryotes. Why care about the small stuff. Bacteria in our bodies. I. Categories of life. II.
Chapter 27: Bacteria and Archaea Outline I. Categories of life A. Domains B. Eukaryote vs Prokaryote II. Domain Bacteria A. cell walls, structure B. Bacterial reproduction C. Nitrogen fixation D. Pathogenic
More informationViruses p.122. Viruses are very small structures which can make other organisms sick.
Viruses p.122 Viruses are very small structures which can make other organisms sick. Illness is caused when the viruses invade an organisms cells and use that cell s resources to make more viruses. Viruses
More informationWhat Are the Protists?
Protists 1 What Are the Protists? 2 Protists are all the eukaryotes that are not fungi, plants, or animals. Protists are a paraphyletic group. Protists exhibit wide variation in morphology, size, and nutritional
More informationCells & Bacteria Notes
Cells & Bacteria Notes 4 Major Macromolecules Macromolecules are large molecules. The four groups of macromolecules are essential to the structure and function of a cell. Group Building Block Large Molecule
More informationImportance of Protists
Protists Protists The kingdom Protista is a very diverse kingdom. Eukaryotes that are not classified as fungi, plants, or animals are classified as protists. However, even though they are officially in
More informationMicroorganisms Answer Key
Microorganisms Answer Key 1. What is NOT a part of the water cycle? a. condensation b. evaporation c. transpiration d. bacteria 2. Unicellular prokaryotes that may be spherical, rod or spiral shaped. a.
More informationKharkov National Medical University. Head of Microbiology, Virology and Immunology Department Minukhin Valeriy Vladimirivich
Kharkov National Medical University Head of Microbiology, Virology and Immunology Department Minukhin Valeriy Vladimirivich Tkachenko Victoria 1, 5, 11, 14, 19, 21, 30 Kovalenko Natalia 2, 12, 25, 29 Siritsa
More informationSome history. Now, we know that Robert Hooke was not looking at living cells, but the remains of dead cell walls.
The Life of a Cell Some history In 1665, Robert Hooke examined the bark of an oak tree under an early microscope. He thought he was looking at something similar to the small rooms of dormitories and prisons;
More information2. The development of revolutionized the of life.
Science 10 Unit 7 Worksheet Chapter 15, Part 1. 1. Briefly describe the three main parts of cell theory: 2. The development of revolutionized the of life. 3. Individual cells need to take in to build and
More informationKingdom Monera - The Bacteria
Chapter 8 The World of Microbes Kingdom Monera - The Bacteria Bio-significance- The down side: Disease of plants crop loss Disease of animals loss of livestock and herds Human disease cavities to The Plague
More informationProkaryotes & Viruses. Multiple Choice Review. Slide 1 / 47. Slide 2 / 47. Slide 3 / 47
New Jersey enter for Teaching and Learning Slide 1 / 47 Progressive Science Initiative This material is made freely available at www.njctl.org and is intended for the non-commercial use of students and
More informationThe Microbial World. Chapter 5
The Microbial World Chapter 5 Viruses Non-cellular infectious agents that have two basic characteristics: Not capable of reproduction without a host cell Structure: Nucleic acid core- can be DNA or RNA
More informationUnit 5. Organisms C H A P T E R 1 5. Bacteria: Unicellular R E A D P
Unit 5 Bacteria: Unicellular Organisms C H A P T E R 1 5 R E A D P. 2 9 3-305 Bacterial Cell Structure: Prokaryotic Single cellular no membrane bound organelles primitive Parts of Bacteria 1. Cell membrane
More informationNotes - Microbiology Protista
Notes - Microbiology Protista Part 1 Animal like Protists - Kingdom Protista is a very diverse group of organisms. There are over 115 000 different kinds, with traits that fit with fungi, plants, and animals.
More informationA. Difference between bacteria (Monera) and other algae (Eukaryotes). -normal stuff: circular v. linear DNA; organelles or not; nucleus or not.
Cyanophyta (Cyanobacteria; blue-green algae). A. Difference between bacteria (Monera) and other algae (Eukaryotes). -normal stuff: circular v. linear DNA; organelles or not; nucleus or not. B. Differences
More informationCh 27: The Prokaryotes Bacteria & Archaea Older: (Eu)bacteria & Archae(bacteria)
Ch 27: The Prokaryotes Bacteria & Archaea Older: (Eu)bacteria & Archae(bacteria) (don t study Concept 27.2) Some phyla Remember: Bacterial cell structure and shapes 1 Usually very small but some are unusually
More informationMicrobiology: A Systems Approach
Microbiology: A Systems Approach First Edition Cowan &Talaro Chapter 5 Eucaryotic cells and microorganisms Chapter 5 2 3 Eucaryotic cells 3 Flagella 4 Cilia similar in overall structure to flagella, but
More informationSeminar 2 : Good Bugs
Seminar 2 : Good Bugs Part 2 Viruses What is a virus? Microscopic particles that infect other organisms and can only replicate within a host cell Contain either contain DNA or RNA surrounded by a protective
More informationSection 19 1 Bacteria (pages )
Chapter 19 Bacteria and Viruses Section 19 1 Bacteria (pages 471 477) How do the two groups of prokaryotes differ? What factors are used to identify prokaryotes? What is the importance of bacteria? 13.
More informationPROTISTS. Chapter 25 Biology II
PROTISTS Chapter 25 Biology II Vocabulary- Protists (44 words) 1. Protist 2. binary fission 3. conjugation 4. Multiple fission 5. pseudopodium 6. test 7. Amoeboid movement 8. cilium 9. Pellicle 10. oral
More information- A virus is a short piece of DNA or RNA, sometimes with some associated enzymes.
Viruses, bacteria, protists & fungi (just the basics!) I. Viruses: - parasites postponed until we discuss them in class. - A virus is a short piece of DNA or RNA, sometimes with some associated enzymes.
More informationChapter 2 1. Using an annotated diagram, describe the structure of a plant cell. (12 marks)
Essays Chapter 2 1. Using an annotated diagram, describe the structure of a plant cell. 2. Compare and contrast the structure of prokaryotic cells and eukaryotic cells. 3. Describe the correct procedures
More informationUnit 4 Cell Structure, Cell Processes, Cell Reproduction, and Homeostasis. Mrs. Stahl AP Biology
Unit 4 Cell Structure, Cell Processes, Cell Reproduction, and Homeostasis Mrs. Stahl AP Biology How cells first came about! http://ed.ted.com/lessons/the-wackyhistory-of-cell-theory Robert Hooke 1665 First
More informationBacteria. Prepared by. Doua a Hamadi Gellan Ibrahim Rahma Younis Doua a Abdul-Hadi Doua a Amjad Hanin Laith Khamael Dawood
Bacteria Prepared by Doua a Hamadi Gellan Ibrahim Rahma Younis Doua a Abdul-Hadi Doua a Amjad Hanin Laith Khamael Dawood History of Bacteriology Doua a Hamadi Bacteria were first observed by Antonie van
More information20 Viruses and Prokaryotes Bacteria
20 Viruses and Prokaryotes 20.2 - Bacteria Classifying Prokaryotes Prokaryote unicellular organisms that lacks a nucleus Most abundant and widespread organisms on Earth Divided into two groups Bacteria
More informationProkaryotes & Viruses. Multiple Choice Review. Slide 1 / 47. Slide 2 / 47. Slide 3 / 47
New Jersey enter for Teaching and Learning Slide 1 / 47 Progressive Science Initiative This material is made freely available at www.njctl.org and is intended for the non-commercial use of students and
More informationThere are 5 kingdoms: Animalia multicellular animals, heterotrophic (eat other things), evolved 700,000,000 years ago (1,000,000 2,000,000 species)
Classification The modern system of naming gives each living thing 7 names. Each name is a little more specific than the one before it. The categories are (in order from least to most specific): Kingdom
More informationProkaryotes & Viruses. Multiple Choice Review. Slide 2 / 47. Slide 1 / 47. Slide 3 (Answer) / 47. Slide 3 / 47. Slide 4 / 47. Slide 4 (Answer) / 47
Slide 1 / 47 Slide 2 / 47 New Jersey enter for Teaching and Learning Progressive Science Initiative This material is made freely available at www.njctl.org and is intended for the non-commercial use of
More informationProtists. Bacteria. Archea
Protists Bacteria Archea Archaeans include inhabitants of some of the most extreme environments on the planet. Image of acid mine drain filled with Archaea. Archaea also thrive in mud and they are one
More informationDomains and Kingdoms. Images, from left to right: Cholera bacteria, Volvox colony, Strep bacteria
Domains and Kingdoms Images, from left to right: Cholera bacteria, Volvox colony, Strep bacteria THE DOMAINS A domain is the broadest level in the classification of life. All living organisms belong to
More informationOverview of Cells. Prokaryotes vs Eukaryotes The Cell Organelles The Endosymbiotic Theory
Overview of Cells Prokaryotes vs Eukaryotes The Cell Organelles The Endosymbiotic Theory Prokaryotic Cells Archaea Bacteria Come in many different shapes and sizes.5 µm 2 µm, up to 60 µm long Have large
More informationCharacteristics of Life
Characteristics of Life All living things share some basic characteristics: 1. Organization 2. Movement 3. Made up of cells 4. Reproduce 5. Grow and / or develop 6. Obtain and use energy 7. Respond to
More informationEarly History and Primitive Life. Unit 2: How do cells support life? Chapter: What are the origins of life? What are the simplest forms of life?
Early History and Primitive Life Unit 2: How do cells support life? Chapter: What are the origins of life? What are the simplest forms of life? Chapter 17-2 EARTH S EARLY HISTORY Evidence for Early Life
More informationProtists The Simplest Eukaryotes. Chapter 22 Part 1
Protists The Simplest Eukaryotes Chapter 22 Part 1 Impacts, Issues The Malaria Menace Plasmodium, a single-celled protist, causes malaria but also manipulates its mosquito and human hosts to maximize its
More informationPDF // IS BACTERIA A PROKARYOTE OR EUKARYOTE
19 January, 2018 PDF // IS BACTERIA A PROKARYOTE OR EUKARYOTE Document Filetype: PDF 222.61 KB 0 PDF // IS BACTERIA A PROKARYOTE OR EUKARYOTE How to Tell the Difference Between Prokaryotes and Eukaryotes.
More informationCh. 19 Bacteria and Viruses Review: Prokaryote and Eukaryote
Ch. 19 Bacteria and Viruses 19.1 Bacteria Review: Prokaryote and Eukaryote 2 Groups of Prokaryotes Prokaryote has no nucleus, bacteria Eukaryote has nucleus, plants, animals, fungi Archaebacteria Cell
More informationFungi What are they? Diverse group of eukaryotic organisms 100,000 to 1,000,000 species
Kingdom Fungi Fungi What are they? Diverse group of eukaryotic organisms 100,000 to 1,000,000 species Fungi Characteristics Kingdom includes Molds, mushrooms & yeasts Characteristically: Most are multicellular
More informationViruses. Viruses. Chapter 5. Prokaryotes. Prokaryotes. Prokaryotes
Viruses Chapter 5 The Microbial World Non-cellular infectious agents that have two basic characteristics: Not capable of reproduction without a host cell Structure: Nucleic acid core- can be DNA or RNA
More information